New York Income Factor calculation is wrong!

It looks like TurboTax online is incorrectly calculating the way income is taxed earned in NY. I've added my income that i earned in NY (as a non NY resident). It says that i will get a refund of a few hundred dollars. However, once I add my wife's income of which none was earned in NY, suddenly we owe a little over one thousand.

Can anyone shed some light into this? Why is her income pushing us to actually owe to NY when all her income was earned in NJ. We are both NJ residents. I did the NY non resident first, i selected the amount i earned in NY and it shows correctly.